Ch. 11- Emotional Behaviors Flashcards
What are the components of an emotional response
behavioral, autonomic, hormonal
Behavioral components consists of
muscular movement that are appropriate to the situation that elicits them
Autonomic responses
facilitate the behaviors and provide quick mobilization of energy for vigorous movement
Hormonal Responses
reinforce the autonomic responses
Hormones are secreted by the
adrenal medulla
the brain area most involved with fear is
amygdala
Nucleus responsible for expression of emotional responses to aversive stimuli
central nucleus of the amygdala
what happens when excitatory amino acid glutamate is injected into the central nucleus of the amygdala
physiological and behavioral signs of fear and agitation
James-Lange theory of emotion
the behaviors and physiological responses are directly elicited by situations and feelings of emotions are produced by the feedback
Stimulus that elicits fear in most species
loud unexpected noises, large animal approaching, sounds or odors
Typical defensive responses for rats
freezing or behavioral arrest
Brain is responsible for inhibition of emotional responses
ventral medial prefrontal cortex
Advantage of threat behaviors
reinforce social hierarchies, organized groups/warn intruders
NT that inhibits aggression
serotonin
What happens when PAG is stimulated in cats
increased aggression/freezing behavior
Brain area and disgust
insular cortex and basal ganglia impairment to these areas cause people not to be able to recognize facial expressions of disgust
What NT is involved in the control of risky behavior
Serotonin
What are the 3 key roles of the ventromedial prefrontal cortex
- plays a role in regulating our responses to situations
- plays a role in inhibiting emotional responses
- inputs provide info about what is happening in the environment
Brain area activated during personal moral dilemmas
ventral medial prefrontal cortex
what is the limbic system
forebrain areas surrounding the thalamus; critical for emotion
behavioral activation system (BAS)
activity of the left hemisphere especially its frontal and temporal lobes, marked by low to moderate autonomic arousal and a tendency to approach
behavioral inhibition system (BIS)
activity of the right hemisphere of frontal and temporal lobes, increases attention and arousal, inhibits action, and stimulates emotions such as fear and disgust
what is turnover
the amount of neurons released and replaced
what is the bed of nucleus of the stria terminalis
set of axons that connect this nuclear to the amygdala, affects long-term generalized emotional arousal
what do Benzos bind to
GABA a receptor